US11845352B2 - Power supply control method for vehicle, vehicle, control unit and medium - Google Patents
Power supply control method for vehicle, vehicle, control unit and medium Download PDFInfo
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- US11845352B2 US11845352B2 US17/817,957 US202217817957A US11845352B2 US 11845352 B2 US11845352 B2 US 11845352B2 US 202217817957 A US202217817957 A US 202217817957A US 11845352 B2 US11845352 B2 US 11845352B2
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 230000004044 response Effects 0.000 claims abstract description 63
- 238000004891 communication Methods 0.000 claims description 38
- 230000002159 abnormal effect Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 238000004590 computer program Methods 0.000 abstract description 11
- 230000010267 cellular communication Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/066—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems characterised by the use of dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Definitions
- Electrical equipment in a vehicle may need to operate while the vehicle is parked.
- the electrical equipment is usually powered by the vehicle power source in the vehicle, i.e., by an engine or a battery in the vehicle.
- the engine if power is supplied by the engine, the engine is required to continuously work while the vehicle has been parked, resulting in environmental pollution at the parking place (especially, the indoor parking place) of the vehicle; if power is supplied by the battery, the battery may be over-discharged, resulting in failure to restart the vehicle.
- a power supply control method for a vehicle wherein the vehicle comprises an electrical equipment, a relay and a power source interface, the power source interface being electrically coupled to the electrical equipment via the relay, the method comprising: determining whether the power interface is coupled to an external power source; determining whether a voltage of the external power source is within a predetermined range in response to the power interface being coupled to the external power source; and controlling the relay to be switched on in response to the voltage of the external power source being within the predetermined range.
- a computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements the method as described herein.
- the external power source is used to supply power to the electrical equipment without using power from the engine or the battery.
- FIG. 1 is a structural block diagram of a vehicle power supply system according to an exemplary embodiment
- FIG. 2 is a flowchart of a power supply control method for a vehicle according to an exemplary embodiment
- FIG. 3 is a flowchart of a power supply control method for a vehicle according to an exemplary embodiment
- FIG. 4 is a flowchart of a power supply control method for a vehicle according to an exemplary embodiment
- FIG. 5 is a structural block diagram of a vehicle according to an exemplary embodiment.
- FIG. 6 is a structural block diagram of a control unit according to an exemplary embodiment.
- Electrical equipment in a vehicle may need to operate while the vehicle is parked.
- An engine or a battery in the vehicle may be used to supply power to the electrical equipment.
- the engine is used for supplying power to the electrical equipment, there will be environmental pollution at the parking place of the vehicle; if the battery is used for supplying power to the electrical equipment, the battery may be over-discharged.
- the electrical equipment comprises an autonomous driving system, which may comprise at least one of a sensor, a vehicle-mounted communication device and a computing apparatus.
- FIG. 2 is a flowchart of a power supply control method 200 for a vehicle according to an exemplary embodiment. According to some embodiments, the method 200 may be performed by the control unit 114 in the vehicle 110 as shown in FIG. 1 .
- step S 203 it is determined whether a voltage of the external power source is within a predetermined range.
- the operation in response to determining that the voltage of the external power source is within the predetermined range (“YES”), the operation proceeds to step S 205 .
- the method 200 in response to determining that the voltage of the external power source is not within the predetermined range (“NO”), the method 200 ends.
- an instruction is issued to prompt that the voltage is abnormal.
- a message of voltage anomaly is sent to an output apparatus (e.g., a display or a speaker) of the vehicle via a communication bus (e.g., a Controller Area Network (CAN) bus), causing the output apparatus to inform a user of the voltage anomaly, for example, by displaying on the display the message prompting that the voltage is abnormal, or causing the speaker to broadcast the message prompting that the voltage is abnormal.
- the predetermined range here may be set according to a charging voltage of the battery, a voltage of the generator and a working voltage of the electrical equipment in the vehicle, in some embodiments.
- step S 205 the relay is controlled to be switched on.
- the relay when the voltage of the external power source is within the predetermined range, the relay is switched on and the engine is turned off, and then the control unit is powered by the external power source, the power on the power distribution unit is also provided by the external power source, and meanwhile the external power source can charge up the battery.
- step S 301 it is determined whether the power interface is connected to an external power source. According to some embodiments, in response to determining that the power interface is connected to the external power source (“YES”), the operation proceeds to step S 303 . According to other embodiments, in response to determining that the power interface is not connected to the external power source (“NO”), the operation returns to step S 301 .
- an instruction is issued to prompt that the voltage is abnormal.
- a message of voltage anomaly is sent to an output apparatus (e.g., a display or a speaker) of the vehicle via a communication bus (e.g., a CAN bus), causing the output apparatus to inform a user of the voltage anomaly, for example, by displaying on the display apparatus the message prompting that the voltage is abnormal, or causing the speaker to broadcast the message prompting that the voltage is abnormal.
- the predetermined range here may be set according to a charging voltage of the battery, a voltage of the generator and a working voltage of the electrical equipment in the vehicle.
- step S 303 is similar to step S 203 in FIG. 2 .
- step S 305 the relay is controlled to be switched on.
- step S 305 may be, for example, similar to step S 205 in FIG. 2 .
- step S 307 it is determined whether the engine is in a working state. According to some embodiments, in response to determining that the engine is in the working state (“YES”), the operation proceeds to step S 309 . According to other embodiments, in response to determining that the engine is not in the working state (“NO”), the method 300 ends.
- whether the engine is in the working state may be determined by reading a signal on a communication bus (e.g., a CAN bus).
- a communication bus e.g., a CAN bus
- step S 309 an instruction is issued to turn off the engine.
- a message is sent to an output apparatus of the vehicle prompting to turn off the engine, such that the output apparatus of the vehicle issues the message prompting the user to turn off the engine, for example, periodically (e.g., every 10 seconds) prompting the user to turn off the engine after the relay is controlled to be switched on while the engine has not been turned off, until the engine is turned off.
- a turn off instruction is sent to the engine after the relay is controlled to be switched on while the engine has not been turned off, without user action.
- the switching from the power supply by using the engine to the power supply by using the external power source is realized, so that the continuous and reliable power supply to the electrical equipment is ensured, and the environmental pollution caused by the operation of the engine when the vehicle is in a parked state is avoided.
- the vehicle further comprises a power distribution unit located between the relay and the electrical equipment, wherein the power supply control method for a vehicle further comprises: controlling the power distribution unit to distribute power from the external power source to the electrical equipment after or when the relay is controlled to be switched on.
- the control unit sends to the power distribution unit a message of distributing power from the external power source to the electrical equipment, and the power distribution unit, after receiving the message, distributes total power input from the external power source to each electrical equipment and feeds back its own voltage and current to the control unit.
- the power supply control method for a vehicle further comprises: determining whether the engine has been started in response to the control unit being activated; and controlling the power distribution unit to distribute power from the battery or the generator to the electrical equipment in response to the engine having been started. For example, when the vehicle leaves the factory to perform an autonomous driving task, the control unit changes from the sleep state to the activated state after the vehicle receives an ignition signal transmitted by a key of the vehicle. After the engine is started, the control unit receives a message suggesting normal engine start through a communication bus (for example, a CAN bus), and the control unit then controls the power distribution unit to distribute power from the generator or the battery to the electrical equipment.
- a communication bus for example, a CAN bus
- the control unit needs to determine whether the power interface is connected to the external power source (i.e., performing step 201 or 301 above). For example, a power plug can be plugged into the power interface by a worker.
- the control unit may instruct the engine to be turned off after the external power source supplies power to the electrical equipment of the vehicle.
- FIG. 4 is a flowchart of a power supply control method 400 for a vehicle according to an exemplary embodiment. According to some embodiments, the method 400 may be performed by the control unit 104 in the vehicle 100 as shown in FIG. 1 .
- step S 401 it is determined whether the control unit is activated. According to some embodiments, in response to determining that the control unit is activated (“YES”), the operation proceeds to step S 403 . According to other embodiments, in response to determining that the control unit is not activated (“NO”), the operation returns to step S 401 and the control unit remains in the sleep state.
- control unit is activated when a user inserts a vehicle key or the vehicle is started otherwise. According to some embodiments, after the control unit is activated, power is supplied to the output apparatus of the vehicle to send a prompt message to the user.
- step S 403 it is determined whether the engine has been started. According to some embodiments, in response to determining that the engine has been started (“YES”), the operation proceeds to step S 405 . According to other embodiments, in response to determining that the engine has not been started (“NO”), the operation proceeds to step S 407 .
- whether the engine has been started may be determined by reading a signal on a communication bus (e.g., a CAN bus), or may be determined by determining whether a normal start signal from the engine is received. According to some embodiments, it is determined that the engine is not started if the engine is not detected to be in the working state for a predetermined period of time (e.g., 10 s).
- a communication bus e.g., a CAN bus
- the power distribution unit is controlled to distribute power from the battery or the generator to the electrical equipment.
- the generator is driven by the engine to convert mechanical energy from the engine into electrical energy when the engine is in the working state.
- the generator provides electrical energy to the battery, and the power distribution unit distributes power from the battery to the electrical equipment.
- the power distribution unit distributes power from the generator to the electrical equipment.
- step S 407 it is determined whether the power interface is connected to an external power source. According to some embodiments, in response to determining that the power interface is connected to the external power source (“YES”), the operation proceeds to step S 409 . According to other embodiments, in response to determining that the power interface is not connected to the external power source (“NO”), step S 408 is performed.
- step S 407 is similar to step S 201 in FIG. 2 .
- step S 408 in response to detecting that the engine is not started and the power interface is not connected to the external power source, a message prompting to start the engine or connect to the external power source is issued through an output apparatus of the vehicle to supply power to the electrical equipment.
- step S 409 it is determined whether a voltage of the external power source is within a predetermined range. According to some embodiments, in response to determining that the voltage of the external power source is within the predetermined range (“YES”), the operation proceeds to step S 411 . According to other embodiments, in response to determining that the voltage of the external power source is not within the predetermined range (“NO”), the method 400 ends.
- an instruction is issued to prompt that the voltage is abnormal.
- a message of voltage anomaly is sent to an output apparatus (e.g., a display or a speaker) of the vehicle via a communication bus (e.g., a CAN bus), causing the output apparatus to inform a user of the voltage anomaly, for example, by displaying on the display the message prompting that the voltage is abnormal, or causing the speaker to broadcast the message prompting that the voltage is abnormal.
- a communication bus e.g., a CAN bus
- the control unit may adjust an output voltage of the external power source 120 according to a charging voltage of the battery, a voltage of the generator and a working voltage of the electrical equipment in the vehicle.
- a desired output voltage of the external power source 120 may be calculated according to the charging voltage of the battery, the voltage of the generator and the working voltage of the electrical equipment in the vehicle, and then displayed on an output apparatus, so that a worker may adjust the output voltage of the external power source 120 according to the desired output voltage.
- the control unit may communicate with the external power source 120 via a communication system of the vehicle and adjust the output voltage of the external power source 120 according to the desired output voltage.
- step S 409 is similar to step S 203 in FIG. 2 .
- step S 411 the relay is controlled to be switched on.
- step S 409 is similar to step S 205 in FIG. 2 .
- the power distribution unit is controlled to distribute power from the external power source to the electrical equipment.
- power supply to the electrical equipment when the vehicle switched from the sleep state to the activated state is realized, so that power can be supplied to the electrical equipment through the external power source without starting the engine.
- the control unit may change from the sleep state to the activated state after the vehicle receives an ignition signal transmitted by a key of the vehicle (i.e., “YES” in step 401 ).
- the power distribution unit distributes power from the external power source to the electrical equipment, thereby enabling powering up of the autonomous driving system without starting the engine.
- the power supply control method for a vehicle described above with reference to FIGS. 2 to 4 may further comprise: detecting voltages and currents of the relay and the power distribution unit; and in response to the detected voltages and/or currents indicating a fault, performing at least one of: controlling the relay to be switched off; and controlling the power distribution unit to stop distributing power to the electrical equipment.
- a voltage and a current at one end of the relay connected to the power interface may be detected, and a voltage and a current at one end of the power distribution unit connected to the relay may be detected.
- the present application has carried out redundancy design as for collection of voltage and current signals from the perspective of function safety, and that is to say, not only the voltage and the current of the relay are collected and detected, but also the voltage and the current of the power distribution unit are collected, so as to avoid the situation that an anomaly cannot be dealt with in time because the collection of signals from a single element fails.
- the detection of the voltages and the currents of the relay and the power distribution unit described above is performed so as to prevent the abnormal state of the external power source from damaging the electrical equipment or other components of the vehicle.
- the controlling the power distribution unit to stop distributing power to the electrical equipment comprises: switching off a power switch (such as a relay or a controllable switch) in the power distribution unit which is connected to the relay and/or controlling a power switching apparatus in the power distribution unit that supplies power to the electrical equipment to stop working.
- a power switch such as a relay or a controllable switch
- the power supply control method for a vehicle further comprises: storing information corresponding to the fault, wherein the fault comprises at least one of a voltage fault and a current fault, the voltage fault comprising one of an over-voltage fault and an under-voltage fault, and the current fault comprising an over-current fault.
- the information corresponding to the fault comprises: the time when the fault occurred, the type of fault, the voltage and current values at the time of the fault, etc.
- an over-voltage fault is determined to occur when the voltage at the relay or the power distribution unit exceeds an over-voltage threshold for a predetermined length of time.
- the external power source is disconnected and/or the power distribution unit stops distributing power to the electrical equipment when the voltage of the external power source is too high, so as to avoid damaging the electrical equipment due to the too high voltage.
- the low-voltage fault is determined to occur when the voltage at the relay or the power distribution unit is below a low-voltage threshold for a predetermined length of time.
- a low-voltage fault is determined to occur when the voltage at the relay or the power distribution unit is below a first low-voltage threshold (e.g., 25 V) for a first predetermined length of time (e.g., 20 s) or when the voltage at the relay or the power distribution unit is below a second low-voltage threshold (e.g., 24 V) for a second predetermined length of time (e.g., 10 s).
- a first low-voltage threshold e.g. 25 V
- a second low-voltage threshold e.g., 24 V
- FIG. 5 is a structural block diagram of a vehicle 500 according to an exemplary embodiment, wherein signal connections are shown in dashed lines and power connections are shown in solid lines.
- the vehicle 500 of FIG. 5 may have mechanisms similar to those of the vehicle 110 of FIG. 1 , and the power supply control method for a vehicle described above with reference to FIGS. 2 to 4 is also applicable to the vehicle 500 of FIG. 5 .
- the vehicle 500 may receive power from an external power source via the power interface 503 and supply the power of the external power source to the electrical equipment 501 , wherein the power interface 503 is electrically connected to the electrical equipment 501 via the relay 502 and the power distribution unit 509 .
- control unit 504 is communicationally coupled with the relay 502 and the power interface 503 , wherein the control unit 504 sends a control signal to the relay 502 to control the relay 502 to be switched on or off, or receives state information of the relay 502 (e.g., a current flowing through the relay 502 or a voltage at one end of the relay 502 ) from the relay 502 , and the control unit 504 receives a state signal (e.g., an external power source connection signal) from the power interface 503 .
- a state signal e.g., an external power source connection signal
- control unit 504 is configured for: determining whether the power interface 503 is connected to the external power source; determining whether a voltage of the external power source is within a predetermined range in response to the power interface 503 being connected to the external power source; and controlling the relay 502 to be switched on in response to the voltage of the external power source being within the predetermined range.
- the engine 505 drives the generator 506 to convert mechanical energy from the engine 505 into electrical energy.
- the generator 506 is electrically connected to the battery 507 to store the generated electrical energy in the battery 507
- the battery 507 is electrically connected to the control unit 504 and the electrical equipment 501 to further provide the electrical energy in the battery 507 to the control unit 504 and the electrical equipment 501
- the generator 506 is electrically connected to the control unit 504 and the electrical equipment 501 , such that the generator 506 provides the electrical energy to the control unit 504 and the electrical equipment 501 directly (without passing through the battery 507 ).
- control unit 504 is communicationally coupled with the power distribution unit 509 (e.g., communicationally coupled via a CAN bus), wherein the control unit 504 receives state information of the power distribution unit 509 (e.g., a voltage or a current of the power distribution unit 509 ) from the power distribution unit 509 and sends a control signal to the power distribution unit 509 , e.g., to control the power distribution unit 509 to distribute power to the electrical equipment 501 or to stop distributing power to the electrical equipment 501 .
- state information of the power distribution unit 509 e.g., a voltage or a current of the power distribution unit 509
- control unit 504 sends a control signal to the power distribution unit 509 , e.g., to control the power distribution unit 509 to distribute power to the electrical equipment 501 or to stop distributing power to the electrical equipment 501 .
- the voltages and currents of the relay 502 and the power distribution unit 509 need to be detected, and the control unit 504 is configured for: in response to the detected voltages and/or currents indicating a fault, performing at least one of: switching off the relay 502 ; and controlling the power distribution unit 509 to stop distributing power to the electrical equipment 501 .
- the output apparatus 508 is electrically connected to the control unit 504 .
- the output apparatus 508 is communicationally coupled with the control unit 504 (e.g., via a CAN bus), so that messages can be sent to a user via the output apparatus 508 (e.g., via visual display or voice announcement).
- control unit which comprises: at least one processor; and at least one storage having instructions stored therein, wherein the instructions, when executed by the at least one processor, cause the at least one processor to perform the method as described herein.
- a computer-readable storage medium having program instructions stored therein, wherein the instructions, when executed by a processor of a control unit, cause the control unit to perform the method as described herein.
- a computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements the method as described herein.
- the control unit 600 may include, but is not limited to, a processor 610 and a memory 620 . It is to be appreciated that FIG. 6 is only an example of the control unit 600 and does not limit the control unit 600 .
- the control unit 600 e.g., an Electronic Control Unit (ECU)
- ECU Electronic Control Unit
- the control unit may further comprise an input-output module, a communication module, and the like.
- the processor 610 may be a Central Processing Unit (CPU), and the processor 610 may be another general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components and the like.
- the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. It should be understood that although only one processor 610 is shown in FIG. 6 , FIG. 6 is merely exemplary and the control unit 600 may comprise more than one processor 610 .
- the memory 620 may, in some embodiments, be an internal storage unit of the control unit 600 , such as a hard disk or a main memory of the control unit 600 .
- the memory 620 may also be an external storage device of the control unit 600 in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card and a Flash Card provided in the control unit 600 .
- the memory 620 may also comprise both an internal storage unit of the control unit 600 and an external storage device.
- the memory 620 is used for storing an operating system, an application program, a BootLoader, data, and other programs, such as program codes of a computer program.
- the memory 620 may also be used to temporarily store data that has been output or is to be output.
- the vehicle described in the embodiments of the present application may be a car, a truck, a motorcycle, a bus, a watercraft, an airplane, a helicopter, a hay mower, an excavator, a snowmobile, an aircraft, a recreational vehicle, an amusement park vehicle, a farm equipment, a construction equipment, a tram, a golf cart, a train, a trolley bus or other vehicles.
- the vehicle may comprise an automatic driving system (i.e., one example of an electrical equipment as described above), such that the vehicle can be operated fully or partially in an autonomous driving mode.
- the vehicle can control itself in the autonomous driving mode.
- the vehicle can determine a current state of the vehicle and a current state of an environment in which the vehicle is located, determine a predicted behavior of at least one other vehicle in this environment, and determine a trust level corresponding to a likelihood that the at least one other vehicle performs the predicted behavior, and thus the vehicle can control itself based on the determined information.
- the vehicle when in the autonomous driving mode, can be operated without human interaction.
- An autonomous driving system of a vehicle may comprise a sensor system, a computing system and/or a communication system.
- the sensor system may comprise a plurality of sensors for sensing information about the environment and conditions of the vehicle.
- the sensor system may comprise an Inertial Measurement Unit (IMU), a Global Navigation Satellite System (GNSS) transceiver (e.g., a Global Positioning System (GPS) transceiver), a Radio Detection and Ranging device (RADAR, or radar), a Laser Detection and Ranging system (LIDAR, or laser radar), an acoustic sensor, an ultrasonic sensor, and an image acquisition device (e.g., a camera).
- IMU Inertial Measurement Unit
- GNSS Global Navigation Satellite System
- GPS Global Positioning System
- RADAR Radio Detection and Ranging device
- LIDAR Laser Detection and Ranging system
- an acoustic sensor e.g., a laser radar
- an ultrasonic sensor e.g., a camera
- a communication system also referred to as a vehicle-mounted communication device, may provide the vehicle with a way to communicate with one or more devices or other vehicles in the vicinity.
- the communication system may communicate with one or more devices directly or through a communication network.
- the communication system may be, for example, a wireless communication system.
- the communication system may use 3G cellular communication (e.g., CDMA, EVDO or GSM/GPRS) or 4G cellular communication (e.g., WiMAX or LTE), and may also use 5G cellular communication.
- the communication system may communicate with a Wireless Local Area Network (WLAN) (e.g., using WIFI®).
- WLAN Wireless Local Area Network
- the communication system may communicate directly with one or more devices or other vehicles in the vicinity, for example, using infrared, Bluetooth® or ZIGBEE.
- Other wireless protocols such as various vehicle-mounted communication systems, are also within the scope of the present application.
- the communication systems may include one or more Dedicated Short Range Communication (DSRC) apparatuses, V2V apparatuses or V2X apparatuses that may be in data communication publicly or privately with vehicles and/or roadside stations.
- DSRC Dedicated Short Range Communication
- the computing system can control some or all of the functions of the vehicle.
- An autonomous driving control unit of the computing system can be configured for identifying, evaluating and avoiding or bypassing potential obstacles in the environment in which the vehicle is located.
- the autonomous driving control unit can be configured for controlling the vehicle in the absence of a driver or providing assistance to the driver in controlling the vehicle.
- the autonomous driving control unit is configured for combining data from sensors, for example, data from a GPS transceiver, data from a radar, data from a LIDAR or data from a camera, with data from other vehicle systems, to determine a path or trajectory of travel for the vehicle.
- the autonomous driving control unit can be activated to enable the vehicle to be driven in an autonomous driving mode.
- an entity A initiates action B may mean that the entity A issues instructions to perform action B, but the entity A itself does not necessarily perform this action B.
- the phrase “the control unit initiates detection of the voltage/current” may mean that the control unit instructs a corresponding sensor (not shown) to detect the voltage/current, but the control unit itself doesn't need to perform the action of “detecting.”
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Transportation (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (2)
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CN202110902736.8 | 2021-08-06 | ||
CN202110902736.8A CN115891878A (en) | 2021-08-06 | 2021-08-06 | Power supply control method for vehicle, control unit, and medium |
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US20230041022A1 US20230041022A1 (en) | 2023-02-09 |
US11845352B2 true US11845352B2 (en) | 2023-12-19 |
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US17/817,957 Active US11845352B2 (en) | 2021-08-06 | 2022-08-05 | Power supply control method for vehicle, vehicle, control unit and medium |
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US (1) | US11845352B2 (en) |
EP (1) | EP4129772A1 (en) |
JP (1) | JP2023024392A (en) |
CN (1) | CN115891878A (en) |
AU (1) | AU2022209263A1 (en) |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090024267A1 (en) | 2006-03-17 | 2009-01-22 | Toyota Jidosha Kabushiki Kaisha | Control Device of Vehicle and Vehicle |
US20100116571A1 (en) | 2007-08-24 | 2010-05-13 | Toyota Jidosha Kabushiki Kaisha | Vehicle |
US20100280698A1 (en) | 2008-05-12 | 2010-11-04 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and method for controlling electric power of hybrid vehicle |
US20110046828A1 (en) | 2009-08-18 | 2011-02-24 | Ford Global Technologies, Llc | System And Method For Controlling Electric Power In A Plug-In Vehicle From An External Power Source |
US20160082852A1 (en) * | 2014-09-18 | 2016-03-24 | Lsis Co., Ltd. | Cable installment type charging control device and method of operating the same |
CN108646714A (en) | 2018-06-04 | 2018-10-12 | 北京智行者科技有限公司 | Power-supply management system and method |
CN209257911U (en) | 2018-09-28 | 2019-08-16 | 浙江大学 | A kind of automatic charging system of automatic driving car |
CN110784013A (en) | 2018-07-30 | 2020-02-11 | 北京图森智途科技有限公司 | Vehicle-mounted uninterruptible power supply |
US10640004B2 (en) | 2016-01-29 | 2020-05-05 | Toyota Motor Engineering & Manufacturing North America, Inc. | Systems and methods for charging and warming vehicle components |
CN111516509A (en) | 2019-02-05 | 2020-08-11 | 株式会社斯巴鲁 | Vehicle with a steering wheel |
US20220247191A1 (en) * | 2021-02-01 | 2022-08-04 | Toyota Jidosha Kabushiki Kaisha | Portable charger |
US20220289051A1 (en) * | 2019-07-31 | 2022-09-15 | Byd Company Limited | Cable assembly and vehicle charging system |
US20220308117A1 (en) * | 2021-03-26 | 2022-09-29 | Toyota Jidosha Kabushiki Kaisha | Battery system and method of estimating polarization voltage of secondary battery |
-
2021
- 2021-08-06 CN CN202110902736.8A patent/CN115891878A/en active Pending
-
2022
- 2022-07-27 AU AU2022209263A patent/AU2022209263A1/en active Pending
- 2022-07-27 EP EP22187214.6A patent/EP4129772A1/en active Pending
- 2022-08-05 US US17/817,957 patent/US11845352B2/en active Active
- 2022-08-05 JP JP2022125284A patent/JP2023024392A/en active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090024267A1 (en) | 2006-03-17 | 2009-01-22 | Toyota Jidosha Kabushiki Kaisha | Control Device of Vehicle and Vehicle |
US20100116571A1 (en) | 2007-08-24 | 2010-05-13 | Toyota Jidosha Kabushiki Kaisha | Vehicle |
US20100280698A1 (en) | 2008-05-12 | 2010-11-04 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and method for controlling electric power of hybrid vehicle |
US20110046828A1 (en) | 2009-08-18 | 2011-02-24 | Ford Global Technologies, Llc | System And Method For Controlling Electric Power In A Plug-In Vehicle From An External Power Source |
US20160082852A1 (en) * | 2014-09-18 | 2016-03-24 | Lsis Co., Ltd. | Cable installment type charging control device and method of operating the same |
US10640004B2 (en) | 2016-01-29 | 2020-05-05 | Toyota Motor Engineering & Manufacturing North America, Inc. | Systems and methods for charging and warming vehicle components |
CN108646714A (en) | 2018-06-04 | 2018-10-12 | 北京智行者科技有限公司 | Power-supply management system and method |
CN110784013A (en) | 2018-07-30 | 2020-02-11 | 北京图森智途科技有限公司 | Vehicle-mounted uninterruptible power supply |
CN209257911U (en) | 2018-09-28 | 2019-08-16 | 浙江大学 | A kind of automatic charging system of automatic driving car |
CN111516509A (en) | 2019-02-05 | 2020-08-11 | 株式会社斯巴鲁 | Vehicle with a steering wheel |
US20220289051A1 (en) * | 2019-07-31 | 2022-09-15 | Byd Company Limited | Cable assembly and vehicle charging system |
US20220247191A1 (en) * | 2021-02-01 | 2022-08-04 | Toyota Jidosha Kabushiki Kaisha | Portable charger |
US20220308117A1 (en) * | 2021-03-26 | 2022-09-29 | Toyota Jidosha Kabushiki Kaisha | Battery system and method of estimating polarization voltage of secondary battery |
Non-Patent Citations (1)
Title |
---|
Extended European Search Report from corresponding EP Application No. 22187214 dated, Dec. 23, 2022. |
Also Published As
Publication number | Publication date |
---|---|
JP2023024392A (en) | 2023-02-16 |
AU2022209263A1 (en) | 2023-02-23 |
CN115891878A (en) | 2023-04-04 |
EP4129772A1 (en) | 2023-02-08 |
US20230041022A1 (en) | 2023-02-09 |
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